RECON: TNO occultation with 09YG19

Event between 09YG19 and star GA1100:01092531 with event index number of 223342

Geocentric closest approach at 2019/11/06 10:14:22 UTC

J2000 position of star is 05:26:16.5 +21:34:28
Equinox of date position of star is 05:27:26.4 +21:35:24
Stellar brightness G=16.0, use SENSEUP=128
Star is 107 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 35.4 AU from the Sun and 34.6 AU from the Earth.
The TNO is moving 18.0 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 149 seconds.
The 1-sigma cross-track error in the shadow position is 1332 km.
The sky-plane scale is 25116.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=350.0 km assuming a 5% albedo -- 19.4 sec chord
Diameter=142.9 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 09YG19, (2019/11/06 10:14UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.7 +16:32:51  0.8 12.93  94
Alnath         05:27:32.9 +28:37:20  1.6  7.03 107
114 Tau        05:28:49.7 +21:57:08  4.7  0.48 107
PPM 094348     05:26:21.2 +20:36:01  6.6  1.02 106
PPM 094354     05:27:05.4 +21:48:07  9.6  0.23 106
09YG19         05:27:27.9 +21:35:25 16.0       107
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 5.0 sigma about the mid-time.
The median site spacing is 22.3 km RECON observability=1.0 and success probability=9.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:14:22 -44.1 Dark Down 61.6 176.0 Up 10:01:25 - 10:27:18 -2385
Summerland 10:14:23 -44.4 Dark Down 61.9 175.5 Up 10:01:27 - 10:27:20 -2412
Penticton 10:14:23 -44.4 Dark Down 62.0 175.7 Up 10:01:26 - 10:27:19 -2419
Okanagan Falls 10:14:23 -44.5 Dark Down 62.2 175.6 Up 10:01:27 - 10:27:20 -2438
Oliver 10:14:23 -44.6 Dark Down 62.3 175.6 Up 10:01:26 - 10:27:19 -2454
Anarchist Mountain Observatory 10:14:22 -44.6 Dark Down 62.5 176.0 Up 10:01:26 - 10:27:19 -2472
Oroville 10:14:22 -44.7 Dark Down 62.6 175.8 Up 10:01:26 - 10:27:19 -2479
Tonasket 10:14:23 -44.8 Dark Down 62.8 175.8 Up 10:01:26 - 10:27:19 -2502
Okanogan 10:14:23 -45.1 Dark Down 63.2 175.4 Up 10:01:27 - 10:27:20 -2534
Brewster 10:14:24 -45.3 Dark Down 63.4 175.0 Up 10:01:28 - 10:27:21 -2560
Manson/Chelan 10:14:26 -45.6 Dark Down 63.6 174.2 Up 10:01:30 - 10:27:23 -2578
Entiat 10:14:26 -45.8 Dark Down 63.8 174.0 Up 10:01:30 - 10:27:23 -2600
Wenatchee 10:14:27 -46.0 Dark Down 64.1 173.7 Up 10:01:30 - 10:27:23 -2625
Ellensburg 10:14:28 -46.3 Dark Down 64.4 173.2 Up 10:01:32 - 10:27:25 -2665
Yakima 10:14:28 -46.6 Dark Down 64.9 173.1 Up 10:01:32 - 10:27:25 -2705
Toppenish/White Swan 10:14:28 -46.6 Dark Down 65.1 173.4 Up 10:01:31 - 10:27:24 -2728
Pasco 10:14:22 -45.9 Dark Down 65.3 176.1 Up 10:01:26 - 10:27:19 -2747
PNWRO 10:14:22 -45.9 Dark Down 65.5 176.6 Up 10:01:25 - 10:27:18 -2773
George/Umatilla 10:14:24 -46.2 Dark Down 65.6 175.6 Up 10:01:27 - 10:27:20 -2780
Goldendale 10:14:30 -47.1 Dark Down 65.6 172.3 Up 10:01:34 - 10:27:27 -2781
The Dalles 10:14:32 -47.5 Dark Down 65.8 171.4 Up 10:01:36 - 10:27:29 -2801
Maupin 10:14:31 -47.6 Dark Down 66.2 171.5 Up 10:01:34 - 10:27:27 -2844
Madras/Culver 10:14:32 -47.9 Dark Down 66.7 171.2 Up 10:01:35 - 10:27:28 -2900
Sisters 10:14:34 -48.4 Dark Down 67.0 170.1 Up 10:01:38 - 10:27:31 -2931
Redmond 10:14:32 -48.1 Dark Down 67.1 171.0 Up 10:01:35 - 10:27:28 -2936
Bend 10:14:33 -48.3 Dark Down 67.3 170.6 Up 10:01:37 - 10:27:30 -2957
Oregon Observatory 10:14:34 -48.5 Dark Down 67.4 170.2 Up 10:01:38 - 10:27:31 -2973
La Pine/Gilchrist 10:14:34 -48.6 Dark Down 67.6 170.0 Up 10:01:38 - 10:27:31 -2994
North Lake 10:14:32 -48.5 Dark Down 68.1 171.2 Up 10:01:35 - 10:27:28 -3043
Paisley 10:14:31 -48.5 Dark Down 68.7 171.9 Up 10:01:34 - 10:27:27 -3102
Chiloquin 10:14:36 -49.4 Dark Down 68.7 168.6 Up 10:01:40 - 10:27:33 -3106
Klamath Falls 10:14:36 -49.5 Dark Down 69.0 168.6 Up 10:01:40 - 10:27:33 -3142
Lakeview 10:14:30 -48.6 Dark Down 69.2 172.2 Up 10:01:33 - 10:27:26 -3155
Tulelake 10:14:35 -49.5 Dark Down 69.3 169.3 Up 10:01:38 - 10:27:31 -3172
Cedarville 10:14:29 -48.8 Dark Down 69.9 172.5 Up 10:01:32 - 10:27:25 -3225
Fall River/Burney 10:14:35 -49.9 Dark Down 70.2 169.0 Up 10:01:39 - 10:27:32 -3267
Susanville 10:14:32 -49.7 Dark Down 71.0 170.7 Up 10:01:36 - 10:27:29 -3338
Greenville 10:14:34 -50.0 Dark Down 71.2 169.8 Up 10:01:37 - 10:27:30 -3365
Gimple 10:14:33 -49.9 Dark Down 71.2 170.0 Up 10:01:37 - 10:27:30 -3365
Quincy 10:14:34 -50.1 Dark Down 71.4 169.7 Up 10:01:37 - 10:27:30 -3386
Portola 10:14:32 -49.8 Dark Down 71.6 171.0 Up 10:01:35 - 10:27:28 -3402
Niwot 10:13:22 -38.8 Dark Down 68.9 212.3 Up 10:00:25 - 10:26:18 -3411
SwRI 10:13:22 -38.9 Dark Down 69.0 212.2 Up 10:00:25 - 10:26:18 -3422
Reno 10:14:29 -49.5 Dark Down 71.9 172.7 Up 10:01:32 - 10:27:25 -3434
Carson City 10:14:29 -49.6 Dark Down 72.3 172.7 Up 10:01:32 - 10:27:25 -3472
Yerington 10:14:26 -49.2 Dark Down 72.5 174.5 Up 10:01:29 - 10:27:22 -3497
Gardnerville 10:14:29 -49.7 Dark Down 72.5 172.7 Up 10:01:32 - 10:27:25 -3499
Hawthorne 10:14:23 -49.0 Dark Down 73.0 176.0 Up 10:01:27 - 10:27:20 -3549
Lee Vining 10:14:27 -49.6 Dark Down 73.5 174.3 Up 10:01:30 - 10:27:23 -3606
Tonopah 10:14:18 -48.2 Dark Down 73.5 180.5 Up 10:01:22 - 10:27:15 -3607
Bishop 10:14:23 -49.3 Dark Down 74.2 176.5 Up 10:01:27 - 10:27:20 -3674
Beatty 10:14:16 -48.2 Dark Down 74.7 182.1 Up 10:01:19 - 10:27:12 -3732
Lone Pine 10:14:21 -49.3 Dark Down 75.0 177.5 Up 10:01:25 - 10:27:18 -3757
Indian Springs 10:14:10 -47.5 Dark Down 74.9 185.9 Up 10:01:14 - 10:27:07 -3772
Henderson 10:14:07 -47.2 Dark Down 75.4 188.6 Up 10:01:10 - 10:27:03 -3832
CPSLO 10:14:35 -51.7 Dark Down 76.0 167.5 Up 10:01:38 - 10:27:31 -3880
Searchlight/Boulder City 10:14:08 -47.3 Dark Down 76.0 189.2 Up 10:01:11 - 10:27:04 -3895
Patrick 10:14:02 -46.5 Dark Down 75.8 193.1 Up 10:01:05 - 10:26:58 -3904
Kingman/Dolan Springs 10:14:03 -46.7 Dark Down 76.1 192.6 Up 10:01:06 - 10:26:59 -3927
Laughlin/Bullhead City 10:14:05 -47.1 Dark Down 76.2 190.7 Up 10:01:09 - 10:27:02 -3928
DCO 10:13:58 -46.0 Dark Down 76.0 196.0 Up 10:01:01 - 10:26:54 -3939
Mohave Valley 10:14:05 -47.2 Dark Down 76.5 190.9 Up 10:01:09 - 10:27:02 -3957
Lake Havasu City 10:14:04 -47.1 Dark Down 76.8 192.2 Up 10:01:08 - 10:27:01 -4002
Wildwood 10:14:25 -50.5 Dark Down 77.4 174.8 Up 10:01:29 - 10:27:22 -4024
Parker 10:14:04 -47.1 Dark Down 77.2 192.7 Up 10:01:07 - 10:27:00 -4040
Idyllwild 10:14:16 -49.2 Dark Down 77.8 182.8 Up 10:01:20 - 10:27:13 -4073
Blythe 10:14:05 -47.5 Dark Down 77.7 191.9 Up 10:01:09 - 10:27:02 -4095
Calipatria 10:14:11 -48.4 Dark Down 78.3 188.3 Up 10:01:14 - 10:27:07 -4145
Yuma 10:14:06 -47.7 Dark Down 78.6 192.7 Up 10:01:09 - 10:27:02 -4196

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 09YG19, (2019/11/06 10:14UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 12.93  94
Alnath         05:26:17.5 +28:36:23  1.6  7.03 107
114 Tau        05:27:38.1 +21:56:13  4.7  0.48 107
PPM 094348     05:25:10.3 +20:35:01  6.6  1.02 106
PPM 094354     05:25:53.8 +21:47:09  9.6  0.23 106
09YG19         05:26:16.5 +21:34:28 16.0       107
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:51:29 UT

Marc W. Buie, Southwest Research Institute

RECON